| 한글제목(Korean Title) |
Degrees of Freedom of 3-user MIMO Interference Channels with Instantaneous Relay Using Interference Alignment |
| 영문제목(English Title) |
Degrees of Freedom of 3-user MIMO Interference Channels with Instantaneous Relay Using Interference Alignment |
| 저자(Author) |
Wang Qiang
Shu Yuquan
Dong Minhua
Xu Ji
Tao Xiaofeng
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| 원문수록처(Citation) |
VOL 09 NO. 05 PP. 1624 ~ 1641 (2015. 05) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
Instantaneous relay (relay-without-delay) using interference alignment is a promising approach to neutralizing interference and improving system capacity. In Wang Chenwei's work, a 2-user scenario required both source and relay to access the global channel state information (CSI). This paper shows a new method of interference alignment improves the degrees of freedom (DoF) prominently for the 3-user MIMO interference channel with instantaneous relay. This new method is focused on the relay node that completes the alignment interference neutralization so the global CSI is obtained only once and the pressure on the base station can be mitigated. In addition, the 3-user MIMO interference channels with instantaneous relay can achieve 2M DoF when source and destination have Mantennas, respectively. This method shows 33% improvement over the conventional method using interference alignment which obtains 3M/2 DoF.
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| 키워드(Keyword) |
Interference Alignment
Neutralization
Instantaneous Relay
Degrees of Freedom
energy efficient
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| 파일첨부 |
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